D

Pronunciation (US):

(GB):

IPA (US):

 Dictionary entry overview: What does D mean? 

• D (noun)
  The noun D has 3 senses:

1. a fat-soluble vitamin that prevents rickets

2. the cardinal number that is the product of one hundred and five

3. the 4th letter of the Roman alphabet

  Familiarity information: D used as a noun is uncommon.

• D (adjective)
  The adjective D has 1 sense:

1. denoting a quantity consisting of 500 items or units

  Familiarity information: D used as an adjective is very rare.

 Dictionary entry details 

• D (noun)

Sense 1

Meaning:

A fat-soluble vitamin that prevents rickets

Classified under:

Nouns denoting substances

Synonyms:

calciferol; cholecalciferol; D; ergocalciferol; viosterol; vitamin D

Hypernyms ("D" is a kind of...):

fat-soluble vitamin (any vitamin that is soluble in fats)

Meronyms (substance of "D"):

ergosterol (a plant sterol that is converted into vitamin D by ultraviolet radiation)

Sense 2

Meaning:

The cardinal number that is the product of one hundred and five

Classified under:

Nouns denoting quantities and units of measure

Synonyms:

500; D; five hundred

Hypernyms ("D" is a kind of...):

large integer (an integer equal to or greater than ten)

Sense 3

Meaning:

The 4th letter of the Roman alphabet

Classified under:

Nouns denoting communicative processes and contents

Hypernyms ("D" is a kind of...):

alphabetic character; letter; letter of the alphabet (the conventional characters of the alphabet used to represent speech)

Holonyms ("D" is a member of...):

Latin alphabet; Roman alphabet (the alphabet evolved by the ancient Romans which serves for writing most of the languages of western Europe)

• D (adjective)

Sense 1

Meaning:

Denoting a quantity consisting of 500 items or units

Synonyms:

500; d; five hundred

Similar:

cardinal (being or denoting a numerical quantity but not order)

 Context examples 

“He'd look remarkably well from a yard-arm, sir,” returned the captain.

(Treasure Island, by Robert Louis Stevenson)

I told you what I’d do if you molested her, and, by the Lord!

(The Return of Sherlock Holmes, by Sir Arthur Conan Doyle)

Still, if I had married Lord St. Simon, of course I’d have done my duty by him.

(The Adventures of Sherlock Holmes, by Sir Arthur Conan Doyle)

"I guess I was," he added; "but I didn't think a woman's face'd do it."

(Martin Eden, by Jack London)

We had strict injunctions, however, on no account to pass the falls of Reichenbach, which are about half-way up the hill, without making a small détour to see them.

(The Memoirs of Sherlock Holmes, by Sir Arthur Conan Doyle)

D'ye think he'd sooner stay in California?

(Love of Life and Other Stories, by Jack London)

A-beefin’ and bellerin’ ’round, as though he’d kill you when he gets you! You know damn well he wont. Can’t afford to.

(The Sea-Wolf, by Jack London)

Methylmalonic aciduria and homocystinuria type D protein, mitochondrial (296 aa, ~33 kDa) is encoded by the human MMADHC gene.

(Methylmalonic Aciduria and Homocystinuria Type D Protein, Mitochondrial, NCI Thesaurus)

D—n the fellow! cried he; why, M. Clerval, I assure you he has outstript us all.

(Frankenstein, by Mary Wollstonecraft Shelley)

They tested several 3-D scaffold patterns with different surface areas.

(3-D gel-nanoparticle device detoxifies blood, NIH)